Network programming send binary values (Type casting)

[Tadas]

Hi,

Is it possible to send unsigned char value over network without using QDataStream and QByteArray

...................
unsigned  char z=';'; 
z=z>>5;  
clientConnection->write(z);

...................
unsigned  char z=';'; 
z=z>>5;  
clientConnection->write(z);

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I get error

error: invalid conversion from 'unsigned char' to 'const char*'

if I do like this

unsigned  char z=';';
z=z>>5;
QByteArray ba;
QDataStream out(&ba, QIODevice::WriteOnly);
out << z;
clientConnection->write(z);

unsigned  char z=';';
z=z>>5;
QByteArray ba;
QDataStream out(&ba, QIODevice::WriteOnly);
out << z;
clientConnection->write(z);

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It works, But I'm interested, how to send value z without using QByteArray and QDataStream. If it is possible.

I think I have to use type casting, but how ? Type casting topic is not easy to understand for newbies:
http://www.cplusplus.com/doc/tutorial/typecasting/